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Texture Cache: Read current data when flushing a 3D segment.
This PR corrects flushing of 3D segments when data of other segments is mixed, this aims to preserve the data in place.
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@ -248,8 +248,14 @@ void SurfaceBaseImpl::FlushBuffer(Tegra::MemoryManager& memory_manager,
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// Use an extra temporal buffer
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auto& tmp_buffer = staging_cache.GetBuffer(1);
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// Special case for 3D Texture Segments
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const bool must_read_current_data =
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params.block_depth > 0 && params.target == VideoCore::Surface::SurfaceTarget::Texture2D;
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tmp_buffer.resize(guest_memory_size);
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host_ptr = tmp_buffer.data();
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if (must_read_current_data) {
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memory_manager.ReadBlockUnsafe(gpu_addr, host_ptr, guest_memory_size);
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}
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if (params.is_tiled) {
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ASSERT_MSG(params.block_width == 0, "Block width is defined as {}", params.block_width);
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